How can I combine two AutoHotkey scripts into one?

Question

I want to combine the following two scripts into one:

• How to replace spaces with dashes?
• What is the windows keyboard shortcut for changing case in selected text?

How can I do this?

Note that whenever I use these AutoHotkey scripts with form input, it presses the Enter key automatically which I don't want.

Answer 1

Select text, press Alt-R

Converts:
"My Filename" to "my-filename"
"MY FILENAME" to "my-filename"
"my filename" to "MY-FILENAME"
Preserves original clipboard contents

#SingleInstance Force

!r::
save := ClipboardAll
Send ^c
clipwait
original_filename := Clipboard
StringReplace, hyphen_filename, original_filename, %A_SPACE%, -, All
StringLower, hyphen_filename_toggle, hyphen_filename
If (hyphen_filename_toggle == hyphen_filename)
{
    StringUpper, hyphen_filename_toggle, hyphen_filename
}
Clipboard := hyphen_filename_toggle
Send ^v
Clipboard := save
return